Breech-loading fire-arm



(No Model.)

J. G. DUNLAP. Y Breech Loading Fire Arm.

ATTORNEYS.

INVENTGR:

B I a,

Patented Jan. I8, 1881.

WITNESSES:

WWW

UNITED STATES PATENT OFFICE.

JEPTHAH G. DUNLAP, OF OEDARVILLE, OHIO.

BREECH-LOADING FIRE-ARM.

SPECIFICATION forming part of Letters Patent No. 236.791, dated January 18, 1881. V

ApplicationfiledMay22,1880. (No model.)

To all whom it may concern:

Be it known that I, JEPTHAH GARRARD DUNLAP, of Cedarville,in the county of Greene and State of Ohio, have invented a new and useful Improvement in Breech-Loading Fire- Arms, of which the following isa specification.

My invention relates to that class of firearms in which the barrel tilts up at the breech.

The invention consists in a novel construction, arrangement, and operation of a bolt for locking the barrel in place when the breech is closed and devices for operating said bolt, and in means for preventing the accidental discharge of the gun before the barrel is locked in place, and also the accidental unshippin g of the barrel from the stock, as hereinafter more particularly described.

In the accompanying drawings, Figure 1 is alongitudinal vertical section of the gun with thebarrel tilted up at the breech. Fig. 2 is a longitudinal horizontal section taken in the line 00 a: of Fig. 1. Fig. 3 is a detail View of a modification.

Similar letters of reference indicate correspondingparts.

A represents the stock, the front end of which is provided with a pivot, B, for the engagement of a hook, O, on the lower side of the breech of the barrel D, by which means the barrel is attached to the stock, so as to allow it to tilt up at the breech.

On the under side of the breech are two catches, E E, which fit nicely in' mortises ff in the bottom of the frame of the stock. The catch E also passes through a slot, 9 in a bolt, G, which slides longitudinally in grooves in the sides of the frame of the stock in a direction parallel with the length of the stock and barrel. The longitudinal movement of the bolt G is accomplished by an arm, H, the lower end of which is secured by a screw, it, in a slot, ii, iii the front end of the triggerguard J. The rear'end of said guard is secured to the stock by screws, and its front end is free to rise and fall in a recess in the stock, the guard itself being elastic. The arm H, from the point where it is pivoted in the slot 6, extends upward and forward diagonally, and thence upward and rearward diagonally, as shown in Fig. 1, so that an upward pressure on thd trigger-guard J will give an upward and backward motion to the extreme upper portion of the arm and an oscillating backward motion to the intermediate portion. The extreme upper portion works in and is guided by a recess, a in the side of the-frame of the stock. If preferred, however, the arm may be guided and its motion limited by means of a screw,

a passing transversely through the stock and through a slot in the arm. in some cases one of the screws of the lock-plate may be used for this purpose. The intermediate or forward diagonal portion of the arm H works in a slot, 9 in the bolt G, between two screws, g 9

passing transversely through said bolt, one in front and the other in rear of the arm H.

' When the barrel is in place for use the catches E E are engaged by the bolt G and securely locked. By pressing upward on the trigger-guard J the, arm H moves theboltG backward, so. as to disengage it from the catches E E and allow the barrel to be tilted up at the breech. By pressing downward on the breech the barrel isreturned-to its place, and the bolt G is caused, by the elasticity of the trigger-guard,.to again engage with the catches E E and lock the barrel in place. The catch E has on its forward lower corner a lug, e, which engages with a bridge, f, at the top of the mortise f, while the rear lower corner of said catch is engaged by thelfront end of the bolt G, by which means the accidental unshipping of the barrel is prevented.

When it is desired to unship the barrel the guard J is pressed so as to move the bolt G still farther back. Then by sliding the barrel slightly backward the hook C may be disengaged and the barrel unshipped;

For holding the trigger so as to prevent the accidental discharge of the gun when the breech is not closed, two methods may be employed, both of which are shown in Fig. 1. The triggerL is provided with an arm, Z, which engages with a shoulder, 47, on the triggerguard J when said guard is pressed upward, so as to prevent the trigger from being pulled. The trigger Mis so arranged that its" lower.

end will engage with a recess, thin the guard I J when said guard is pressed upward, and thus prevent said trigger from being pulled.

When it is desired to oil the bolt G and arm loo I H without removing the lock-plate or the trigger-guard the screws a, 9 and it may be removed. The arm H can then be taken out and oil'cd, and some oil can be dropped in through the slot 6, so as to reach the bolt G.

Fig. 3 illustrates a mode of applying the arm H to a bolt arranged higher than .the

bolt. G above. described. The arm H is bent forward again above the rear diagonal portion, and then upward, so as to engage with a bolt, G arranged to engage with a recess: in the breech instead of with the catches E E Having thus fullivdescribed my invention,..

desire to secure by Letfast at the lower endto said guard, and working by-means of a slot over the screw a -and in a slot of the bolt G, as and for the purpose specified.

2. The combination of the trigger L, pr0- vided with 'the arm Z, and the trigger-guard I J, provided with the shoulder 47, as vshown and described, for the purpose specified.

3. The combination of the trigger M and the trigger-guard J, provided with the recess specified.

JEPTHAH G. DUNLAP. Witnesses:

V HIRAM D. GLINE,

JASPER HUFFMAN.

4' as shown'and described, for. the purpose 

